500 kV变电站主变保护与220 kV母差保护配合问题探析

A Brief Analysis of Coordination Between Main Transformer Protection and 220kV Bus Differential Protection in 500kV Substation

通过分析500kV综合自动化变电站主变保护、220kV母差保护改造时的二次回路配合问题,为主变保护与母差保护的改造配合提出建议。

By analyzing the secondary circuit coordination problem during the modification of the main transformer protection and 220 kV bus differential protection of 500 kV integrated automation substation,this paper gives some suggestions on the modification coordination between the main transformer protection and bus differential protection.